To turn the wound against all scars.

Special Topics in Calamity Physics by Marisha Pess

It is impossible to rid yourself of the relentless, cloying fever commonly known as Home. After 73 years of anguish I have found a cure, however. You must go home again, grit your teeth and however arduous the exercise, determine, without embellishment, your exact coordinates at Home, your longitudes and latitudes. Only them, will you stop looking back and see the spectacular view in front of you.